1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/sound/renesas,idt821034.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Renesas IDT821034 codec device
8
9 maintainers:
10 - Herve Codina <herve.codina@bootlin.com>
11
12 description: |
13 The IDT821034 codec is a four channel PCM codec with onchip filters and
14 programmable gain setting.
15
16 The time-slots used by the codec must be set and so, the properties
17 'dai-tdm-slot-num', 'dai-tdm-slot-width', 'dai-tdm-slot-tx-mask' and
18 'dai-tdm-slot-rx-mask' must be present in the ALSA sound card node for
19 sub-nodes that involve the codec. The codec uses one 8bit time-slot per
20 channel.
21 'dai-tdm-tdm-slot-with' must be set to 8.
22
23 The IDT821034 codec also supports 5 gpios (SLIC signals) per channel.
24
25 allOf:
26 - $ref: /schemas/spi/spi-peripheral-props.yaml#
27 - $ref: dai-common.yaml#
28
29 properties:
30 compatible:
31 const: renesas,idt821034
32
33 reg:
34 description:
35 SPI device address.
36 maxItems: 1
37
38 spi-max-frequency:
39 maximum: 8192000
40
41 spi-cpha: true
42
43 '#sound-dai-cells':
44 const: 0
45
46 '#gpio-cells':
47 const: 2
48
49 gpio-controller: true
50
51 required:
52 - compatible
53 - reg
54 - spi-cpha
55 - '#sound-dai-cells'
56 - gpio-controller
57 - '#gpio-cells'
58
59 unevaluatedProperties: false
60
61 examples:
62 - |
63 spi {
64 #address-cells = <1>;
65 #size-cells = <0>;
66 audio-codec@0 {
67 compatible = "renesas,idt821034";
68 reg = <0>;
69 spi-max-frequency = <8192000>;
70 spi-cpha;
71 #sound-dai-cells = <0>;
72 gpio-controller;
73 #gpio-cells = <2>;
74 };
75 };
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